Hardware User Guide; Power Distribution; Connectors - Microchip Technology ATtiny3217 Xplained Pro Manual

4.

Hardware User Guide

4.1

Power Distribution

ATtiny3217 Xplained Pro has two power sources; EDBG USB and external 5.0V. The kit will automatically select the
power source. The kit has two on-board 3.3V voltage regulators; one for the EDBG and XAM, and one for the
ATtiny3217 and other peripherals.
Figure 4-1. Power Supply Block Diagram
EDBG and XAM
Power
Measurement
Select
4.2

Connectors

The following sections describe the implementation of the relevant connectors and headers on the ATtiny3217
Xplained Pro and their connection to the ATtiny3217. The tables of connections in the sections also describe which
signals are shared between the headers and on-board functionality. The figure below shows all available connectors
and jumpers on ATtiny3217 Xplained Pro.
©
2020 Microchip Technology Inc.
Regulator 3.3V
VCC_P3V3
Regulator 3.3V
VCC_MCU
ATtiny3217
Jumper
Peripherals
VCC_TARGET
ATtiny3217 Xplained Pro
VCC_P5V0
Auto MUX
User Guide
Hardware User Guide
External 5V
input
EDBG USB
Power converter
Power consumer
Power source
Power switch
DS50002765B-page 12